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We were always resolving the buffer as if we were accessing it via CPU maps, which don't understand any auxiliary surfaces. But we often copy to a temporary using BLORP, which understands compression just fine. So we can avoid the resolve, and accelerate the copy as well. Fixes: 9d1334d2 ("iris: Use copy_region and staging resources to avoid transfer stalls") Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com> (cherry picked from commit 2d799250)
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